參數(shù)資料
型號(hào): LT1585A
廠商: Linear Technology Corporation
英文描述: 5A Low Dropout Fast Response Positive Regulators Adjustable and Fixed
中文描述: 第5A低壓降穩(wěn)壓器快速反應(yīng)積極可調(diào)和固定
文件頁數(shù): 2/9頁
文件大?。?/td> 152K
代理商: LT1585A
LT1585A
2
MOTOROLA ANALOG IC DEVICE DATA
ABSOLUTE MAXIMUM RATINGS
(
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur)
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Thermal Resistance, Junction–to–Case
Case 936 (D2PAK) (TJ = +25
°
C)
Thermal Resistance, Junction–to–Ambient
Minimum ESD Rating (Human Body Model: C = 100pF, R = 1.5 k )
θ
JA
R
θ
JC
PD
R
θ
JA
65
5.0
Internally Limited
70
3.0
°
C/W
°
C/W
W
°
C/W
kV
Power Dissipation
°
C)
Internally Limited
W
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OPERATING RATINGS
(Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee
specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics)
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Rating
Symbol
TJ
Pin #
Value
0 to +125
Unit
°
C
V
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ELECTRICAL CHARACTERISTICS
(0 < TJ < +125
°
Characteristic
Operating Junction Temperature Range
Symbol
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Pin #
Min
Unit
Supply Voltage
3
7.0
Typ
Max
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(Vin–Vout) = 3V, Iout = 10mA, TJ = 25
°
C
1.5V
(Vin–Vout)
5.75V, 10mA
Iout
5A
Output Voltage (LT1585A–1.5)
Vin = 5V, TJ = 25
°
C, Iout = 0mA
LT1585A: 2.75V
LT1585A–1.5: 3V
Vin
7V, Iout = 0mA
Load Regulation [Notes 1, 2]
LT1585A: (Vin–Vout) = 3V, TJ = 25
°
C, 10mA
Iout
5A
LT1585A–1.5: Vin = 5V, TJ = 25
°
C, 0mA
Iout
5A
LT1585A: (Vin–Vout) = 3V, 10mA
Iout
5A
LT1585A–1.5: VOUT = 1%, IOUT = 3A
LT1585A: VREF = 1%, IOUT = 5A
(Vin–Vout) = 5.5V
Adjust Pin Current (LT1585A)
Minimum Load Current (LT1585A) 1.5V
(Vin–Vout)
5.75V
LT1585A–1.5: f = 120Hz, Cout = 25
μ
F Tant., Vin = 4.5V, Iout = 5A
Thermal Regulation TJ = 25
°
C, 30ms Pulse
RMS Output Noise (% of Vout) TJ = 25
°
C, 10Hz
f
10kHz
NOTES
2.Line and load regulations are guaranteed up to the maximum power dissipation 28.8W for the LT1585A in T–package. Power dissipation is
determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/output voltage range.
3.The LT1585A has constant current limit with changes in input–to–output voltage.
Reference Voltage (LT1585A)
1
1.238
1.225
1.250
1.250
1.262
1.275
V
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2
V
1.485
1.5
1.515
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0.005
0.005
0.2
0.2
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2
0.05
0.05
0.05
0.3
0.3
0.5
%
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1.150
1.200
1.300
1.400
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ILoad min
2
5.0
6.0
2.0
10
mA
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IAdj
1
55
120
A
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60
72
0.004
0.003
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T
°
%/W
%
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